AZW to EPUB Converter
Convert AZW to EPUB online for free. Fast, secure, and high-quality conversion with no sign-up or software required.
Maximum file size is 1GB
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Three steps to your converted file
Everything happens in your browser tab - upload, pick a format, download. The heavy lifting runs on our servers.
Upload your file
Drag and drop, click to browse, or paste a URL. Batches take up to 20 files at once - 230+ input formats across video, audio, image, document, and archive types.
Choose an output format
Pick from over a hundred output formats. Filter by category or search by name - every option is open to everyone, no account needed.
Convert & download
Hit Convert and grab your download link moments later. Originals are erased when the job completes; results are cleared within about an hour.
What is an AZW file?
The AZW format is Amazon's proprietary eBook file type, fundamentally based on the Mobipocket (MOBI) standard but encapsulated with Amazon's digital rights management (DRM) scheme. Structurally, it utilizes a Palm Database (PDB) container format and typically implements PalmDOC (LZ77) or Huffman compression algorithms to store reflowable text and low-resolution raster images. Originally introduced with the first Kindle in 2007, it is restricted to the Amazon ecosystem and lacks the advanced styling capabilities found in the newer KF8 standard.
How to open an AZW file
Due to inherent DRM encryption, AZW files are natively readable only on Amazon Kindle hardware and the Kindle application for Windows, macOS, iOS, and Android. For non-DRM AZW files, open-source eBook management software such as Calibre can decode and convert the content, though modifying DRM-protected files requires circumvention tools that may violate terms of service.
AZW Technical Info
- Full Name
- Amazon Kindle eBook Format
- Developed By
- Amazon
- Initial Release
- 2007
- MIME Type
- application/vnd.amazon.ebook
What is an EPUB file?
EPUB (Electronic Publication) is an open e-book standard maintained by the World Wide Web Consortium (W3C), originally developed by the International Digital Publishing Forum (IDPF). It utilizes the Open Container Format (OCF) based on ZIP compression to package XHTML content, CSS styling, and XML metadata. EPUB supports reflowable content, allowing text to adapt to various screen sizes, and fixed-layout rendering for graphic-heavy publications. The current version, EPUB 3.2, supports HTML5, SVG, and JavaScript interactivity.
How to open an EPUB file
EPUB files require dedicated e-reader software as most operating systems do not natively render them. On desktop environments (Windows/macOS/Linux), Calibre is the industry-standard management tool, while Adobe Digital Editions handles DRM-protected files. For mobile devices, Apple Books (iOS) and Google Play Books (Android) provide native rendering. Browser-based extensions like EPUBReader for Chrome allow viewing without standalone software.
EPUB Technical Info
- Full Name
- Electronic Publication
- Developed By
- IDPF / W3C
- Initial Release
- 2007
- MIME Type
- application/epub+zip
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Why RunConvert
The fastest way to convert any file
Purpose-built for speed, privacy, and breadth of format support.
Convert AZW to EPUB in seconds
Every AZW to EPUB conversion runs on our servers, so your device stays fast and the output quality stays intact.
Fast, cloud-powered
No queue, no waiting. Files are processed on high-performance servers and returned in seconds, even for large files.
Secure & private
Encrypted in transit and never shared with anyone. Uploads are erased the moment your job completes, and results shortly after.
Free - no account needed
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Developer API
Convert AZW to EPUB via API
Automate AZW to EPUB conversions in three steps: create a job, upload your file, then poll for the result.
# 1. Create job
curl -X POST https://api.runconvert.com/v3/jobs \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"tag": "azw-to-epub",
"tasks": {
"upload-file": {
"operation": "import/upload"
},
"convert": {
"operation": "convert",
"input": "upload-file",
"output_format": "epub"
},
"export-result": {
"operation": "export/url",
"input": "convert"
}
}
}'
# 2. Upload your file (use upload_url from the response)
curl -X PUT "$UPLOAD_URL" --upload-file input.azw
# 3. Poll for result
curl https://api.runconvert.com/v3/jobs/$JOB_ID?include=tasks \
-H "Authorization: Bearer YOUR_API_KEY"Replace YOUR_API_KEY with your RunConvert API key. Get your free API key at runconvert.com/api.